SPN 110 - FMI 0 (Fault Code 151)

SPN110 FMI0
Engine Coolant Temperature - Data Valid but Above Normal Operational Range - Most Severe Level

Coolant Temperature Sensor Circuit

CODES:
Fault Code: 151
PID(P), SID(S): P110
SPN: 110
FMI: 0/0
Lamp: Red

REASON: Engine Coolant Temperature - Data Valid but Above Normal Operational Range - Most Severe Level. Engine coolant temperature signal indicates engine coolant temperature above engine
protection critical limit.

EFFECT:
-Automotive: Progressive power derate increasing in severity from time of alert. If Engine Protection Shutdown feature is enabled, engine will shut down 30 seconds after red Stop lamp starts flashing.
-Marine: calibration dependent.

Circuit Description:
The engine coolant temperature sensor is used by the electronic control module (ECM) to monitor the engine coolant temperature. The ECM monitors the voltage on the signal pin and converts this to a temperature value. The engine coolant temperature value is used by the ECM for the engine protection system and engine emission control.

Component Location:
The engine coolant temperature sensor is located on the thermostat housing.

Shop Talk:
This fault code indicates that coolant temperature has exceeded the engine protection limits for high coolant temperature.


Read More:
SPN 110 - FMI 4 (Fault Code 145)
SPN 110 - FMI 16 (Fault Code 146)









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